Call/SIPCall: remove template

src/call.cpp

src/call.h

src/call_factory.cpp

src/call_factory.h

src/client/callmanager.cpp

src/conference.cpp

src/conference.h

src/ice_transport.cpp

src/jamidht/jamiaccount.cpp

src/jamidht/jamiaccount.h

src/manager.cpp

src/media/audio/audio_rtp_session.h

src/media/localrecorder.h

src/media/peerrecorder.h

src/plugin/callservicesmanager.cpp

src/sip/sipaccount.cpp

src/sip/sipcall.cpp

src/sip/sipcall.h

src/sip/sipvoiplink.cpp